陈雅静


摘 要:交通运输行业的快速发展为经济建设提供了充足的基础设施,当前,交通运输行业的繁荣发展为公路、桥梁等交通基础设施建设提供了新的发展动力。挂篮悬臂浇筑技术应用成本低廉,安全性能高,施工作业形式简便,该技术在公路桥梁施工中有着广泛的应用,已经在公路桥梁建设中发挥了积极作用,具有良好的应用前景。因此,本文对桥梁挂篮施工过程中防护技术的运用和潜在问题进行了探究。
关键词:桥梁;挂篮施工;防护技术
Abstract: The rapid development of the transportation industry provides sufficient infrastructure for economic construction, at present, the prosperous development of the transportation industry provides new development momentum for the construction of transportation infrastructure such as highways and bridges. Hanging basket cantilever pouring technology has low application cost, high safety performance, and simple construction operation form, which has a wide range of applications in the construction of highway bridges, has played an active role in the construction of highway bridges, and has good application prospects. Therefore, this paper explored the application of the protection technology and potential problems during the construction of the bridge hanging basket.
Keywords: bridge;hanging basket construction; protection technology
公路和橋梁是道路交通网络建设的重要组成部分,二者发挥着至关重要的作用。近些年来,桥梁工程等基础设施建设进展愈发迅速,对桥梁施工技术提出了新要求,如何在保证安全的前提下提高工程项目施工效益与建设效率成为重要的探究内容[1-6]。目前,公路桥梁施工广泛使用挂篮悬臂浇筑技术,其突出特点为采用预制结构,现场可以灵活进行拼接[7-9]。在挂篮作业中,施工单位要采取合理的防护措施,保证施工安全。
1 挂篮施工防护技术设计原则
1.1 实事求是原则
挂篮是挂篮悬臂浇筑技术的核心设备,挂篮自重和结构对挂篮作业安全有重要的影响。因此,施工人员应当根据实际工况,合理设计挂篮结构和自重[10-12]。其间以实际悬臂法作业量为参考,合理选择挂篮规格,在现场条件允许的情况下,优先选用自锚平衡式挂篮,其具有较好的抗倾覆能力。为了降低挂篮作业成本,施工单位既要保证挂篮作业质量,又要合理调整挂篮作业周期。……